Set #61010 Western Riding Gift Set was released 2005-2006 and included Doll and Western Tack. Released mid-year 2005, so not listed in the 2005 catalog. On the 2006 Retired List.
Set #9961056 Western Deluxe Barn Set was released in 2009. Same model, doll and tack. Released through Target, or similar store, so not pictured in the 2009 catalog. This could have been left over models from the 2006 run.